{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840653346",
    "entityType": "User",
    "nonce": "0xa176d6ebaa1651dd3747bb9bd62a938bfe3d4d4871c58b48f2f8858153bde616",
    "signature": "0xc7d00d51068f2719e6bb046005c78c34a05b92de89346a14905d5c55b61eb096784ca2753f9466840c2e7ac25a0ffe99e27ede61552ab8dd30f7104d8a58da491c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}